== core-size=4, max-size=12, queue-capacity=4, 16 blocking tasks ==

distinct threads that ran a task : 12
thread names                     : [task-6, task-7, task-11, task-12, task-10, task-8, task-9, task-1, task-2, task-3, task-4, task-5]
4 core threads, 4 tasks queued, 8 more threads created up to max-size.

